254 search results - page 42 / 51 » Perspectives on ontology-based querying |
MM
2006
ACM
14 years 1 months ago
2006
ACM
Conventional wide-area video surveillance systems use a network of fixed cameras positioned close to locations of interest. We describe an alternative and flexible approach to w...
ISSA
2004
13 years 9 months ago
2004
Chor et al [3] show that when accessing a single public database, a user is only guaranteed safety from an administrator inferring the user's real intentions (an inference at...
PVLDB
2008
13 years 7 months ago
2008
Despite the intense interest towards realizing the Semantic Web vision, most existing RDF data management schemes are constrained in terms of efficiency and scalability. Still, th...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
Web-database systems are nowadays an integral part of everybody's life, with applications ranging from monitoring/trading stock portfolios, to personalized blog aggregation a...
KDD
2002
ACM
14 years 8 months ago
2002
ACM
This paper presents an approach to automatically optimizing the retrieval quality of search engines using clickthrough data. Intuitively, a good information retrieval system shoul...